Yesterday, I was using arcane eyes around Karazhan to power level my level 1 pets to level 5 to take them into tougher fights. Yesterday, two fights was enough XP to hit level 5, today, I've noticed it's now taking double the amount of fights, and only getting enough XP for one level jump (was two level per fight)

Is anyone else noticing this?

Edit: Hmmm, my high level pet was the Masked Tanuki. If I swap to this pet, I get around 120XP per fight. I noticed by chance if I swapped to my other level 25 instead (Infinite Whelp) I go the usual 240ish XP per fight.